Cultivator



(No Model.)

B. V. CALDWELL.

GULTIVATOR.

Patented Dec. 9, 1884.

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EDVJIN V. lALDW ELL, OF HARPERSVILLE, ALABAMA.

CULTIVATOR.

SPECIFICATION forming part of Letters Patent No. 309,130, dated December 9, 188

Application tiled April 26, 1884. (No model.)

To all whom it may concern.- I

Be it known that I, EDWIN V. CALDWELL, otHarpersville, in the county of Shelby and State of Alabama, have invented a new and useful Improvement in Cultivators, which improvement is fully set forth in the following specification and accompanyingdrawings, in which Figure 1 is a perspective view of my improved cultivator, harrow, pulverizer, and smoother; Fig. 2, a plan View of the beams at one side of the cultivator, showing the bottom of the teeth turned inwardly; Fig. 3, Same with teeth turned outwardly; Fig. 4, a view of the tooth with the washer and a portion of the beam in section; Fig. 5, a perspective view of the lower end of the tooth; Fig. (5, a perspective view of the forward end of draftbeam detached.

My invention relates to cultivator -teeth 1 and novel means for securing them to the beams of a cultivator, which will be fully understood from the following description,when taken in connection with the annexed drawings.

In the accompanying drawings, A repre sents the draftbeam. and I; B cross-arms at the rear end, located a short distance from each other. I prefer to have one of the crossarms gained into the beam on the upper side, i and a similar arm gained into the beam on the under side, and the two secured together and to the beam by single bolt, (I. The rear arms are designed to be somewhat longcr than the forward arms. Suitable handles, 1), are secured to the rear end of the beam A, and project upwardly and baclnvardly, so as to be in convenient position to be grasped by thehand.

E E represent the branching tooth-arms, which are hinged at their inner ends to the arms 13 B, as shown, by the bolts F. The outer ends of these beams are connected by thelinks I-I.

G- represents an adjusting rod or bar, running across from the tooth-arm on one side to the similar arm on the other side. This adjusting-bar is so arranged that the arms 15 E i may be projected out at nearly right angles to the draft-beam, or they may incline rearwardly, and when adjusted the central clamp I will hold the same in position. Projecting K is a seat secured at its rear end to the post L, and supported at its forward end on legs M, which project upwardly from the beams E, adj ustably by means of nut m. The teeth N are square in cross-section and bent centrally, as shown, the upper half, 0, being vertical when in position, and the lower half, I, triangular at the bottom, but enlarging toward the center, where it is square. The upper end is screw-threaded and provided with a shoulder and a head or washer, Q, having its upper side flat and tapering somewhat downwardly, and with a suitable opening through it for placing upon the upper end of the tooth. The upper face of the head rests against the under side of the beam, while the upper threaded end of the tooth projects sufficientl y above the head or washer so as to pass through ihebeam,and be secured in position by means of a nut, B. The opening through the washer is formed square from the bottom some distance upwardly so that the shoulder 19 of the tooth will fit therein, while the upper part of said opening is formed circularand sufiiciently large to receive the upper end. of the tooth. A gage-wheel, S, having suitable supporting-brackets, T, is provided under the forward end of the draftbeam. The said brackets are pivoted at their rear end, and unite at the forward end and pass over the top of the beam and clevis. Slots U are providedwith a bolt, V, therein, passing through the beam, by means of which the wheel may he graduated as to height.

Fig. 6 shows view of the gage wheel and supporting-brackets, )laced at one side of the beam,for use when a single horse is to be used and the corn passes immediately beneath the draft-beam.

The gage-wheel, as provided under the forward end of the draft-beam, is designed to be used especially in cases where the teeth on the forward tooth-arms have their lower ends turned forward, in which position the forward end of the draft-beam has a tendency down ward.

In case I desire to throw the soil inwardly,

the nut at the upper end of the tooth is slightly released and the foot of the tooth turned inwardly, as shown in Fig. 2.

Fig. 3 shows the arms in which the ,lower ends of the teeth are turned outwardly, to be used when it is desired to turn or throw the soil outward.

X shows a single tooth in Fig. 2, turned out at right angles with the draft-beam, and represents'the positions in which I place the teeth when the device is desired to be used as a clod-pulverizer.

When it is desired to use the device as a smoother, I turn the lower ends of the teeth backward. (Not shown in the drawings.)

\Vh at I claim is 1. The combination of a cultivator-tooth having a square-shouldered shank terminating at its upper end in a rounded screwthreaded portion, the beam E, the washer Q, 1

having a square socket nearly through it, and 20 the nut and Washer fastening on top of,the beam, as described.

2. The combination of the draft-beam supported by a wheel near its clevis, the beams F, hinged to said draft-beam and provided 25 with teeth, the drivers seat mounted on the draft-beam and front cultivator-beams, the handles D,secured to the draft-beam and also to a clip, I, and the slotted extensible braces G, connected to said clip, all constructed and 0 adapted to operate substantially as described.

In testimony that I claim the foregoing I have hereunto set my hand, this 26th day of March, 1884, in the presence of witnesses.

EDWIN V. CALDXVELL.

\Vitnesses:

GIDEoN C. VVILsoN, O. D. ZERRE. 

